Matt Giwer <[email protected]> wrote:
> And I presume people who have never layed concrete are impressed
> with the first discussion of it.
that reconstituted limestone can't be handle like concrete because it is
simply not concrete. as someone pointed out, the term concrete is
> You mean they had to be rolled downhill first?
No. I mean that there is no water inthe wadi outside of flooding period.
> What does characterizing this kind of limestone have to do with
> showing it is concrete?
There are no natural limestone with these characterics (except for the
bubbles according to prd). Personally, I've never seen natural
limestones with bubbles.
> One would expect visual inspection to be sufficient to establish
> whether or not it is in fact concrete.
That's what Barsoum is actually claiming. You have too look carefully,
> > Again. The process described by Davidovits does not involve as much
> > extensive burning.
> Any burning is more expensive.
Davidovits says that the bakery itself provided enough ashes for the
"Tout est au mieux dans le meilleur des mondes possibles" Voltaire vs